28195996 has 18 divisors (see below), whose sum is σ = 52418408. Its totient is φ = 13268160.

The previous prime is 28195963. The next prime is 28195997. The reversal of 28195996 is 69959182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28195997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11040 + ... + 13351.

Almost surely, 2^28195996 is an apocalyptic number.

It is an amenable number.

28195996 is a deficient number, since it is larger than the sum of its proper divisors (24222412).

28195996 is a wasteful number, since it uses less digits than its factorization.

28195996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24429 (or 24410 counting only the distinct ones).

The product of its digits is 349920, while the sum is 49.

The square root of 28195996 is about 5309.9902071473. The cubic root of 28195996 is about 304.3657733670.

The spelling of 28195996 in words is "twenty-eight million, one hundred ninety-five thousand, nine hundred ninety-six".